I LOVE Rockin' Green! To be fair, I've never used Tiny Bubbles, but Rockin' Green always leaves my diapers smelling fresh and clean (and the pre-wash scent is fun, too!). I've also never had an issue with stinky diapers. It's great! She has two formulas right now, Soft Rock (for delicate skin) and Classic Rock (great for people with hard water). In a week or so, she's coming out with Hard Rock, which is just for people with hard water, though I've had no issues with Classic Rock doing the job.
Re: rockin green vs tiny bubbles?
Tales of the Wife